Collapsible tube compressor



F. E. CHAMBERLAIN 2,815,886

COLLAPSIBLE TUBE COMPRESSOR Dec. 10, 1957 Filed May 2, 1955 INVENTORQI Fran/r E. Chamber/air;

United States Patent COLLAPSIBLE TUBE COMPRESSOR Frank E. Chamberlain, Varna, Ill.

Application May 2, 1955, Serial No. 505,279

2 Claims. (Cl. 222-93) This invention relates to a collapsible tube compressor and it consists in the constructions, arrangements and combinations herein described and claimed.

it is the cardinal object of the invention to provide an attachment for collapsible tubes applicable to the base of the tube, having a width area greater than that of the tube which when pressed against the body of the tube will etfect an even pressure thereon to expel a portion of the contents of the tube through the discharge opening thereof.

A further object of the invention is the provision of an attachment for collapisble tubes in the form of a flat body member having transparent spaced parallel wall members forming a passage for and retention of an advertising medium, one wall member being of a length shorter than the other wall, said last named wall being recurved upon itself in the direction of the first wall and terminating a distance from the lower edge thereof, the recurved portion being outwardly offset from the major plane of the shorter wall permitting edgewise entrance of the sealed bottom end of the tube.

It is also an important object of the invention to provide a device of the character described which may be readily constructed from plastic materials or from suitable sheet material, enabling production at a low cost.

Additional objects, advantages and features of inven-' tion will be apparent from the following description, con-' sidered in conjunction with the accompanying drawing, wherein;

Figure 1 is a perspective view of the compressor showing the mode of use upon a collapsible tube.

Figure 2 is a side elevation of the tube and compressor, partly in section, and

Figure 3 is a perspective view of the compressor.

There is illustrated a collapsible tube of conventional construction, embodying a material discharge opening 11 and a closed rear end, which is customarily accomplished by folding the side walls upon each other and crimping the same, thus forming a bead as at 12.

The tube compressor is shown at 13, which in the present instance, is formed from an elongated transparent plastic sheet, bent upon itself inwardly of one end thereof to form a bight portion 14, thus providing a pair of parallel walls 15 and 16. The opposite end of the sheet is formed with a bight portion 17, bent on an are slightly greater than the bight portion 14 to present a wall 18 Patented Dec. 10, 1957 outwardly offset with respect to the wall 15, the lower edge 19 of which terminates a distance above the upper edge 20 of the wall 18 forming a passage 21, as clearly shown in Figures 2 and 3. Thus the wall 15 is divided inwardly of the bight portion 17.

The spacing of the walls 15 and 16 is such as to frictionally retain an advertising card 22 as shown in Figure 3. Before application of the compressor 13 to the tube 10, either side of the advertisement will be visible to an observer, and when applied to the tube, the advertisement may still be observed through the wall 16.

The compressor 13 may be readily applied to the tube 10 by flexing the closed end of the tube to one side as shown in Figure 3, so that the bead 12 may enter the bight portion 17 in edgewise manner, the passage 21 permitting a corresponding movement of the tube 10. When the compressor 13 has been centralized upon the tube 10, the compressor is moved into abutting relation with the adjacent wall of the tube as shown in Figure 3.

In use, pressure is exerted upon the compressor, as shown in Figure 1, causing the material to be extruded through the discharge opening 11. By reason of the greater width of the compressor than the tube, an even discharge of the material from the lower end of the tube is effected thereby avoiding waste of material which would otherwise remain in the tube. As the material in the tube is used, the compressor 13 may be folded upwardly upon the tube body so that material in the upper portion of the tube may be extruded.

While I have shown and described a preferred form of the device, this is by way of illustration only, and I consider as my own all such modifications in construction as fairly fall within the scope of the appended claims.

I claim:

1. A compressor for application to the beaded end of a collapsible tube comprising a substantially rigid sheet member formed to have a pair of spaced parallel walls, one of said walls being divided adjacent one end forming a passage for edgewise entrance of the beaded end of a collapsible tube, and said parallel walls being transparent and open upon their vertical edges to permit insertion of an advertising card.

2. A compressor for application to the beaded end of a collapsible tube comprising a transparent substantially rigid sheet member shaped to provide opposed bight portions and a pair of spaced parallel walls, one of said walls being divided transversely to define a passage, one terminal end of the divided wall being offset outwardly with respect to the other terminal end of said divided wall whereby the beaded end of a collapsible tube may be inserted edgewise between said terminal ends of the divided wall and retained in the adjacent bight portion of the compressor.

References Cited in the file of this patent UNITED STATES PATENTS 1,754,403 Reubush Apr. 15, 1930 

